Home / 320,857.17-442,783.02-175,672.36

Finding the Fourth Proportional to 320,857.17, 442,783.02 and 175,672.36

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Solution

The fourth proportional to 320,857.17, 442,783.02 and 175,672.36 is: 242,427.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,857.17 : 442,783.02 = 175,672.36 : x
  2. Step 2: Convert to fraction form
    320,857.17/442,783.02 = 175,672.36/x
  3. Step 3: Cross multiply
    320,857.17x = 442,783.02 × 175,672.36
  4. Step 4: Simplify right side
    320,857.17x = 77,784,738,091.33
  5. Step 5: Solve for x
    x = 77,784,738,091.33/320,857.17
  6. Step 6: Final answer
    x = 242,427.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.